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JIPMER Jipmer Medical Solved Paper-2000

  • question_answer
    Two   waves \[y=0.25\text{ }sin\,316t\] and \[y=0.25\,\sin 310\,t\] are travelling in same direction. The number of beats produced per second will be :

    A)  3                                            

    B)  6                            

    C)  \[3\pi \]                              

    D)         \[3/\pi \]

    Correct Answer: D

    Solution :

    Comparing the given equations with the standard equation of wave. We have \[{{n}_{1}}=\frac{316}{2\pi }\]    and        \[{{n}_{2}}=\frac{310}{2\pi }\] hence number of beats is \[=\frac{316}{2\pi }-\frac{310}{2\pi }=\frac{6}{2\pi }=\frac{3}{\pi }\]


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